irrlicht/include/SMeshBufferLightMap.h

// Copyright (C) 2002-2007 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h

#ifndef __S_MESH_BUFFER_LIGHT_MAP_H_INCLUDED__
#define __S_MESH_BUFFER_LIGHT_MAP_H_INCLUDED__

#include "irrArray.h"
#include "IMeshBuffer.h"

namespace irr
{
namespace scene
{
	//! Simple implementation of the IMeshBuffer interface with S3DVertex2TCoords vertices.
	struct SMeshBufferLightMap : public IMeshBuffer
	{
		//! constructor
		SMeshBufferLightMap()
		{
			#ifdef _DEBUG
			setDebugName("SMeshBufferLightMap");
			#endif
		}

		//! destructor
		~SMeshBufferLightMap() {}; 

		//! returns the material of this meshbuffer
		virtual const video::SMaterial& getMaterial() const
		{
			return Material;
		}


		//! returns the material of this meshbuffer
		video::SMaterial& getMaterial()
		{
			return Material;
		}

		//! returns pointer to vertices
		virtual const void* getVertices() const
		{
			return Vertices.const_pointer();
		} 

		//! returns pointer to vertices
		virtual void* getVertices()
		{
			return Vertices.pointer();
		} 

		//! returns amount of vertices
		virtual u32 getVertexCount() const
		{
			return Vertices.size();
		}

		//! returns pointer to Indices
		virtual const u16* getIndices() const
		{
			return Indices.const_pointer();
		}

		//! returns pointer to Indices
		virtual u16* getIndices()
		{
			return Indices.pointer();
		}

		//! returns amount of indices
		virtual u32 getIndexCount() const
		{
			return Indices.size();
		}

		//! returns an axis aligned bounding box
		virtual const core::aabbox3d<f32>& getBoundingBox() const
		{
			return BoundingBox;
		}

		//! set user axis aligned bounding box
		virtual void setBoundingBox( const core::aabbox3df& box)
		{
			BoundingBox = box;
		}


		//! recalculates the bounding box. should be called if the mesh changed.
		void recalculateBoundingBox()
		{
			if (Vertices.empty())
				BoundingBox.reset(0,0,0);
			else
			{
				BoundingBox.reset(Vertices[0].Pos);
				for (u32 i=1; i<Vertices.size(); ++i)
					BoundingBox.addInternalPoint(Vertices[i].Pos);
			}
		}

		//! returns which type of vertex data is stored.
		virtual video::E_VERTEX_TYPE getVertexType() const
		{
			return video::EVT_2TCOORDS;
		}

		//! returns the byte size (stride, pitch) of the vertex
		virtual u32 getVertexPitch() const
		{
			return sizeof ( video::S3DVertex2TCoords );
		}


		//! Material for this meshbuffer.
		video::SMaterial Material;
		//! Vertices of this buffer.
		core::array<video::S3DVertex2TCoords> Vertices;
		//! Indices into the vertices of this buffer.
		core::array<u16> Indices;
		//! Bounding box of this meshbuffer.
		core::aabbox3d<f32> BoundingBox;
	};

} // end namespace scene
} // end namespace irr

#endif